Parameterize max errors for clear container

Also use setter injection for max request time.

blobstore/src/main/java/org/jclouds/blobstore/strategy/internal/DeleteAllKeysInList.java

@@ -63,10 +63,12 @@ public class DeleteAllKeysInList implements ClearListStrategy, ClearContainerStr
    private final ListeningExecutorService userExecutor;
 
    protected final AsyncBlobStore connection;
+
    /** Maximum duration in milliseconds of a request. */
-   @Inject(optional = true)
-   @Named(Constants.PROPERTY_REQUEST_TIMEOUT)
-   protected Long maxTime = Long.MAX_VALUE;
+   protected long maxTime = Long.MAX_VALUE;
+
+   /** Maximum times to retry an operation. */
+   protected int maxErrors = 3;
 
    @Inject
    DeleteAllKeysInList(@Named(Constants.PROPERTY_USER_THREADS) ListeningExecutorService userExecutor,
@@ -76,6 +78,16 @@ public class DeleteAllKeysInList implements ClearListStrategy, ClearContainerStr
       this.retryHandler = retryHandler;
    }
 
+   @Inject(optional = true)
+   void setMaxTime(@Named(Constants.PROPERTY_REQUEST_TIMEOUT) long maxTime) {
+      this.maxTime = maxTime;
+   }
+
+   @Inject(optional = true)
+   void setMaxErrors(@Named(Constants.PROPERTY_MAX_RETRIES) int maxErrors) {
+      this.maxErrors = maxErrors;
+   }
+
    public void execute(String containerName) {
       execute(containerName, recursive());
    }
@@ -89,7 +101,6 @@ public void execute(final String containerName, ListContainerOptions options) {
          message += " recursively";
       logger.debug(message);
       Map<StorageMetadata, Exception> exceptions = Maps.newHashMap();
-      int maxErrors = 3; // TODO parameterize
       for (int numErrors = 0; numErrors < maxErrors; ) {
          // fetch partial directory listing
          PageSet<? extends StorageMetadata> listing;